ylinopeus

Etymology
From.

Noun

 * 1) The difference between the actual speed of a vehicle and the permitted speed.
 * 2) A speed that is higher than the speed limit; overspeed speed that exceeds a reasonable or permitted rate
 * 3) speeding act of driving faster than the legal speed limit
 * 1) speeding act of driving faster than the legal speed limit
 * 1) speeding act of driving faster than the legal speed limit

Usage notes

 * The Finnish police uses the term "excess speed" in their English communication to mean the "positive difference between the actual speed and the permitted speed" (sense #1). However, it seems that in English texts "excess speed" is chiefly used to mean "a speed that is higher than the permitted speed" (sense#2).